The Hornady American 357 Magnum 125 grain XTP load packs genuine revolver performance into a 25 round box that deserves to be shot rather than stored on a shelf. Hornady built the American Gunner line around proven bullets and honest factory consistency, and this cartridge shows exactly what that approach delivers. Each round pushes the XTP bullet, short for eXtreme Terminal Performance, out of the muzzle at 1500 fps and 624 ft/lbs of energy.
That is a full power magnum load, not a watered down practice round. Twenty five cartridges is the right count for a focused range session or a full season of woods carry with rounds left over. You get a bullet with a long service record, a clean burning charge behind it, and a brass case you can load again when the shooting is done.
What the Hornady American 357 Magnum XTP load is and who it suits
This is a jacketed hollow point revolver cartridge in the classic 125 grain weight, loaded to full magnum velocity. It fits the shooter who owns one wheel gun and wants one load that covers home defense, trail carry, and hunting small to medium game. The light bullet moves quickly, shoots flat inside practical handgun distance, and stays controllable in a mid frame revolver.
Shooters stepping up from .38 Special will find the Hornady American 357 Magnum recoil brisk but entirely manageable in a steel framed gun. Nothing about this cartridge is exotic, and that is the whole point of the American Gunner line. You are buying a well made hollow point, a consistent powder charge, and reloadable brass at a working shooter price.
Features that matter on the range and in the field
- XTP hollow point engineered for controlled expansion and deep penetration instead of shallow fragmentation.
- 1500 fps muzzle velocity and 624 ft/lbs of muzzle energy from a genuine full power charge.
- Reloadable brass cases that keep the long term cost of the Hornady American 357 Magnum box sensible.
- Uniform 125 grain bullet weight for a repeatable point of impact from one cylinder to the next.
- Twenty five round box that drops neatly into a range bag, a truck console, or a safe shelf.
- Built by Hornady, a Nebraska manufacturer with decades of bullet making behind it.
Specifications you should know before you order
The numbers here are refreshingly simple. Bullet weight is 125 grains, muzzle velocity is 1500 fps, muzzle energy is 624 ft/lbs, and the box holds 25 rounds. Those figures come from a cartridge built for .357 Magnum revolvers, which means it also runs in any firearm chambered for the round.
Velocity in that range does two useful things for the Hornady American 357 Magnum shooter. It drives the hollow point hard enough to open reliably, and it flattens trajectory so holdover stops being guesswork at handgun distance. Expect real muzzle blast and a bright flash in low light, because that is simply what magnum pressure produces.
Carry, storage and reloading the Hornady American 357 Magnum
Sight in with the load you actually intend to carry. A 125 grain bullet often prints to a different point of impact than the 158 grain loads many revolvers were regulated for, so burn a dozen rounds confirming your zero at the distance that matters to you. Keep the rest of the box sealed in a cool, dry place and the primers will stay live for years.
Rotate your carry rounds occasionally instead of chambering the same cartridges over and over. Once fired, the cases from your Hornady American 357 Magnum practice make excellent reloading brass, since the boxer primer pocket and heavy revolver case walls survive many cycles. Sort by headstamp, trim as needed, and you have a component supply that pays for itself.
If you are building a broader stock of handgun and rifle loads, browse the rest of our ammunition selection and put a single larger order together in one shipment. Buying deep on the loads you shoot most is always cheaper than buying a box at a time.
Serious revolver shooters keep one load they trust, and the Hornady American 357 Magnum XTP has earned that spot in a lot of gun safes. It expands, it penetrates, it groups, and it does not cost a fortune to practice with. This ammunition ships straight to your door wherever state and local law allows.





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